The document summarizes regional differences in smoking, drinking, and drug use among young people aged 11-15 in England based on an annual survey. It finds that the percentage of young people who have ever smoked ranges from 31% in the North East to 42% in the South West, while regular smoking ranges from 10% in the North East to 7% in the South West. London youth are the least likely to have ever drank alcohol or drank in the last week, while those in the North East are most likely. Overall drug use was lowest in the South West at 15% and highest in the North West at 20%, with cannabis use also lowest in the North East and highest in the North West.